
Mathematics Concepts
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
MARIA BATISTA
Used 1+ times
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24 questions
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1.
FLASHCARD QUESTION
Front
Os zeros das funções ficam exatamente em qual eixo do plano cartesiano?
Back
Os zeros das funções ficam sempre no eixo X.
2.
FLASHCARD QUESTION
Front
Como podemos encontrar os zeros de uma função a partir de sua expressão algébrica?
Back
Igualando a expressão da função a zero e encontrando o valor de x.
3.
FLASHCARD QUESTION
Front
Se uma função não cruza o eixo X, o que isso indica sobre seus zeros?
Back
Indica que a função não possui zeros reais.
4.
FLASHCARD QUESTION
Front
Para encontrar um ponto no plano cartesiano olhamos primeiro em qual eixo?
Back
A ordem das coordenadas de um ponto é: primiero os valores em x, depois em y.
(x , y)
5.
FLASHCARD QUESTION
Front
Na forma fatorada de um polinômio, os valores numéricos que aparecem são sempre as raízes do polinômio, só que com o sinal inverso.
Back
Exemplo:
No polinómio (x-3) . (x+4) . (x+8) as raízes são
3, -4 e -8
6.
FLASHCARD QUESTION
Front
Como fazemos para calcular a porcentagem de um número?
Back
Basta multiplicar (x) a procentagem pelo número e o resultado dividir por 100.
7.
FLASHCARD QUESTION
Front
Como podemos calcula a área de uma quadrado e de um retângulo?
Back
Basta multiplicar: base x altura
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